JHJ Science Journal KWL IMMUNE SYSTEM!

K - Wat I already noe

I already noe dat immune system is protecting us from da viruses or jst avoid from harmless thingys.

W - Wat I wna noe

I wna noe how da heck do dendritic find B & T cells.

L - Wat I learnd

Dendritic things find B & T cells.
T cells let B cells go, so they produce antibodies which will fight against antigens, the foreign substance.
Respiratory, digestive and circulatory systems are first line defenses. When tissue is damaged by injury of infected by pathogens, it becomes inflamed.
Inflammation - redness,swelling, increased temperature and pain
Helper T cells turn on the immune system.
Vaccine can also develop active immunity. It has antigens that gives you active immunity against a disease.

The Nervous System!​

K I only know that nervous system is made up with nerve cells and that we have reflexes, so the brain wil work after it tells you what to do to kill the pain.

W

I want to know how does the reflexes happen.
L
Types of nerve cells - motor neurons, sensory neurons and interneurons.

Heredity

K

Babies get something similar from their parents. DNA, RNA All the living things reproduce reproduce reproduce. Cell divisions , Mitosis Meiosis(?).

W

How is that possible?

L